He wanted to increase the wealth of Persia, he wanted glory, and revenge.
-------------------------------
It all began when the Greeks helped the Ionions revolt, which resulted in the destruction of the Persian city of Sardis. Darius the Great swore revenge, ordered his satrap to attack Greece, but failed. Darius took the task upon himself, but soon died. His son, Xerxes the Great, continued his father's plan.
It is important to note that Xerxes did NOT want to conquer Greece. After the Persian victory at the Battle of Thermopylae, Athens was abandoned and "conquered" by the Persians, but Xerxes decided to burn it to the ground in revenge for what the Greeks did to Sardis (although soon after, Xerxes regretted what he had done and rebuilt the city), and thereafter soon left Greece.
His father Darius had planned to do it to bring the Greek city-states under control as their endless fighting was spilling over into the Persian Empire. An expedition to bring troublemakers Eretria and Athens under control had failed at Marathon, so Darius planned a full-scale action, however this was delayed by a revolt in Egypt, then Darius died. His son Xerxes took on the project.
The put them under control of a Persian provincial governor tostop their endless wars spilling over into his empire.
Xerxes
It was blocking his advance to Southern Greece.
Xerxes son of Darius
Xerxes was so important because he launched a invasion of Greece, with 180,000 troops and thousands of warship and supply vessels.
His ambition was limitless and it was the greatest challenge around. He said it was reparation for the Persian invasion of Greece a hundred and fifty years earlier.
they where mad at Greece
Darius the 1st and his son Xerxes the 1st .
Darius I in 490 BC, and his son Xerxes in 480 BC.
Xerxes was a son of the ruler Darius the First. He tried to conquer Greece again. In 480 BC, the Persian Army set out for Greece. They were also joined by the Persian Navy. I think they lost the war.
Xerxes
yes the Romans defeated the last of the major greek city-states in 146 BC.
Athens
Yes, in fact he was the first ever to conquer all of Greece.
Xerxes
Xerxes was a king in Ancient Greece. He was born around 520 B.C., in the Southern Province of Persis.
It was the campaign by King of Kings Xerxes of Persia (Achaemenid dynasty), son of Darius the Great, who followed in the steps of his father and attacked the Western fronts of the Persian Empire to expand Persia and to conquer Greece.
Persian king Xerxes invaded mainland Greece in 480-479 BCE.